Title: Time Switch

Summary: As for Doc Brown, he kept his secret to himself when he had realized he was in love with her. He so wanted to kiss her before Marty had left for 1985, but that would mean changing history.

Shipping: GirlMarty/Doc

Author's note: THIS CHAPTER OFFICIALLY HAS SMUT!

It only took a few hours for the pictures to be developed and during that time, she ate dinner. Edna was nowhere in sight as that was a relief for her. Marty bought a small snack in case she gets hungry later before getting the develop pictures.

Once the pictures were done, she went back to her hotel and saw that it was 6:30pm. Emmett should be coming out soon, Marty thought as she lies on the bed and started to watch television. It wasn't long until she heard a knock on the door and saw that it was Emmett.

"Emmett, your here early," Marty commented as it was quarter to six.

Emmett shrugs, "your leaving tomorrow and I want to spend time with you. I'll listen to pop's lecture tomorrow," he said as Marty frowns and she let him in inside.

"Don't tell me you left without telling him!" Marty accused.

"So? You don't know my father, Marty," Emmett said.

"But…" Marty began as she hit her back against the wall.

"Were you able to follow Edna?" He asks.

Marty nodded as she gestures to her bag then looks up at Emmett. "Everything's in there. I have hard-" She didn't finished as Emmett's chapped lips were against hers.

Marty was a bit shell shocked. She didn't noticed Emmett's right hand boldly going towards her right breast through her clothing. Marty gasped and moaned as she broke the kiss off. "Oh god, Emmett! Bed, now!" Marty commanded as Emmett obliged.

Marty has ignored the consequences of the timeline that she changed. Once on the bed, the two began to take each other clothes in a hurried way, they couldn't get enough of each other. Once naked, Marty laid down on her back as Emmett trails kisses downwards to its destination.

"Ha-have you ever done this before?" Marty manages to get out.

"Once, but you know how that turned out," Emmett said as Marty knew what he was talking about. His head snaps up to look at her, "Marty, are you a…" he didn't finished as Marty blushes and nodded. "I..I didn't know, I don't want to be the one that will make you lose your virginity," Emmett said.

"Emmett, if I didn't want this, I would have told you. Besides, I trust you and I'm glad that you are the one I will lose it too," Marty said.

Emmett looks at her face for a moment before he continues on what he was doing. Marty gasped and then moans as she felt Emmett licking at her clit. Marty put her hand up on top of his head as she began to breathe erratically. She uses her other hand to play with one of her breasts. "Oh Emmett…"

Emmett gave her clit one last lick as he pulls away making Marty groaned in disappointment. Emmett smirks as he went up to her and kisses her on the lips. Marty moans at the taste as Emmett breaks off the kiss to look at her, "your turn to suck," he said as he gestures down to his cock.

Emmett moves slightly back as Marty got up and went down on her knees on the bed. Marty looks up at Emmett before she grabs both of her breasts and putting the cock in the middle. Emmett moans at the feeling as Marty begins to move as she licks the head.

Pretty soon, Marty was at a rhythm where Emmett had his head thrown back in pleasure. "Oh fuck! Marty!" Emmett groans.

Marty grins as she rubs his cock against her tits faster and faster as it slides between her breasts up and down. Before she knew it, Emmett's cock exploded right in her face as cum was dripping from his cock and Marty's face. She heard Emmett groaned in pleasure as Marty licked her lips and she could taste the cum there.

Emmett moaned at the sight as he leans forward to kiss Marty. The two kissed fiercely before one of them needed air to breath. Emmett was lying on his back, trying to catch his breathing as Marty lays down next to him on the right.

"Just let me catch my breath," Emmett mutters.

Marty smirked, "Shouldn't I be the one catching my breath?" She asked.

"Mmm," Emmett replies lazily as he turns facing her.

Marty moans as she feels Emmett's cock against her entrance. She felt Emmett's hands holding her as one of his hands went towards her breasts and began to play with her nipple. Marty threw her head back in pleasure as Emmett kisses her neck. "We need protection first if this is your first time," he mutters.

Marty shook her head numbly, "I want to feel you, baby. I want to feel your hot seed filling me," She said as Emmett groans.

The two kissed before Emmett lines his cock up against her entrance before pushing it in slowly. Marty gasped in surprise on the feeling as it did hurt. She whimpers as Emmett kisses her cheek apologetically, "it will get better, I promise," he said soothingly as Marty nodded.

Emmett pushed in more as he groans, "You're so tight, it's no wonder it is hurting you," he mutters as Marty shuts her eyes. Pretty soon, Marty could feel Emmett thrusting back in and out off her as slowly as possible. Marty moans as Emmett's thrusts began to pound into her and soon, she was screaming.

"Oh yes! Pound me, Emmett!" Marty cries in pleasure as she could hear the bed creaking. Marty gasps as she felt Emmett slaps her ass in time with the thrusting. She didn't care if there were people in the other room, all she needed now was Emmett.

Marty didn't know this was going to be so good! She couldn't help it as she came with a loud yell as she cries out Emmett's name. Three pounds later, Emmett too came inside Marty as she groans at the feeling of the hot seed. "Oh god, Emmett…" Marty says breathlessly as Emmett slowly slid out from her making Marty whimper at the loss.

"That was quick," Emmett mutters as he turns to kiss her on the cheek.

"Mmm, first time, remember?" Marty said as she had closed her eyes as she tries to calm her breathing.

Emmett nodded but then freezes. "Marty…" he began.

"Hmm?" Marty asked without opening her eyes or turning to look at him.

Emmett looks at her as he didn't say anything awhile for a moment. He smiles, "It's nothing. Let's just sleep since tomorrow we need to be fresh to present the evidence," he said.

Marty nodded in agreement as she turns to snuggle against Emmett. Emmett sighed as he put a hand on her protectively, you are mine, he thought as he soon falls asleep.

TBC...

Okay, I think there might be like two chapters left (not really sure). I am writing chapter six at the moment and it should be up somewhere this week (hopefully). Thanks for reading!